More stringent
legislation governing the control of atmospheric emissions, increasing awareness of the potential health risks associated with exposure to vapours and the need to continually strive for higher levels of plant safety are all factors dictating the necessity for effective management of vapours at bulk liquid storage facilities.
Products stored and handled at bulk storage terminals may be broadly categorised as either petroleum or chemicals.
Each category generally warrants an independent and dedicated approach to both vapour capture and control. Product recovery is often warranted where the petroleum product is gasoline.
Where a variety of chemicals are stored and handled such as Toluene, hexane, styrene, acrylates, and the like, then the goal is to apply a technology which can address the broadest range of chemical vapours, safety and effectively, with minimal impact on storage flexibility.
No one vapour emission control (VEC) technology, however, is available which can satisfy the likely demands of each product category. Technologies currently being used or considered for gasoline vapour recovery are not suitable to fully address the broader range of chemicals normally at the chemical terminals.
Conversely, technology applied to address a variety of chemicals is generally not suitable for the handling of gasoline vapors.
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